Can't filter on custom UUID with BLE on Zephyr/NCS

RE: Can't filter on custom UUID with BLE on Zephyr/NCS

Susheel Nuguru — Thu, 28 Jan 2021 10:00:32 GMT

Jonas,

The uart example (central_uart and peripheral_uart) uses a custom UUID for NUS_SERVICE and they have worked well on my desk. I have editied the NUS service UUID to something random and it still works with the scan filter.

I think you are missing to initialize the rest of the scanning module members as it is done in the uart example,

BT_SCAN_CB_INIT(scan_cb, scan_filter_match, NULL,
scan_connecting_error, scan_connecting);

Please take UART NUS as template and do your tests, because it works just find here on my desk. Tested on NCSv1.4.99 on nRF52840 DK on both ends

RE: Can't filter on custom UUID with BLE on Zephyr/NCS

Jonas Lien — Tue, 26 Jan 2021 13:29:50 GMT

No problem, looking forward to your findings as I'm really scratching my head on this one myself 🙂

RE: Can't filter on custom UUID with BLE on Zephyr/NCS

Susheel Nuguru — Tue, 26 Jan 2021 13:21:15 GMT

Sorry for late response Jonas,

It is strange that the scan filtering is not working on your 128 bit custom UUID. It should have worked the same, but we maybe missing something simple I will do a quick test tomorrow and will come back to you with my findings, Thanks for your patience.